A model study of the interannual variability of Tanzanian rainfall

The ability of the Hadley Centre Atmospheric Model version 3 (HadAM3) to capturerainfall variability patterns over Eastern Africa and the western tropical Indian Oceanduring the rainy seasons (October to December (OND) and March to May (MAM)) isassessed against data derived from National Centre for Environmental Prediction (NCEP)model and Global Precipitation Climatology Project (GPCP). The vector windsclimatology at 850hPa and 200hPa reveals some comparable patterns in both HadAM3 andNCEP. However, there are indications that the Somali Jet appears earlier and the monsooneasterly winds over the western Indian Ocean are weaker in HadAM3 than in NCEP.Empirical Orthogonal Functions (EOF) and Principal Component Analysis (PCA) derivedfrom the GPCP precipitation and NCEP Outgoing Longwave Radiation (OLR) andgeopotential anomalies were also compared to those from the HadAM3 model.

Grantor dc:publisher.institution

Department of Oceanography

Year dc:date.issued

2006

Author dc:creator

• Loisulie, Saiguran

Advisor dc:contributor.advisor

• Reason, Chris

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/6488

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/6488